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* [Bug c++/63753] New: std::transform does not change size
@ 2014-11-05 18:29 darkdragon-001 at web dot de
  2014-11-05 22:15 ` [Bug libstdc++/63753] " glisse at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: darkdragon-001 at web dot de @ 2014-11-05 18:29 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63753

            Bug ID: 63753
           Summary: std::transform does not change size
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: darkdragon-001 at web dot de

When using std::transform with a OutputIterator to std::vector then the vector
size is not updated (see code attached):

#include <algorithm>
#include <iostream>
#include <vector>

using namespace std;

int main() {
  vector<double> v = {1,2,3,4,5};
  vector<double> r;
  r.reserve(v.size());
  transform(v.begin(),v.end(),r.begin(),[](const double& d) {
    return 2*d;
  });
  cout << "size:" << r.size() << "front:" << r.front() << endl;

  return 0;
}


^ permalink raw reply	[flat|nested] 2+ messages in thread

* [Bug libstdc++/63753] std::transform does not change size
  2014-11-05 18:29 [Bug c++/63753] New: std::transform does not change size darkdragon-001 at web dot de
@ 2014-11-05 22:15 ` glisse at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: glisse at gcc dot gnu.org @ 2014-11-05 22:15 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63753

Marc Glisse <glisse at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
It isn't supposed to be updated.


^ permalink raw reply	[flat|nested] 2+ messages in thread

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2014-11-05 18:29 [Bug c++/63753] New: std::transform does not change size darkdragon-001 at web dot de
2014-11-05 22:15 ` [Bug libstdc++/63753] " glisse at gcc dot gnu.org

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